USGS Two-Site Data Grapher

This is a data graphing utility that allows the user to build graphs
of data from two USGS stations. Select the stations, the type of graph,
the parameters to plot, and the starting and ending dates for the graph.
Then, click the button labeled "Make Graph."

Note: I see that javascript is not currently enabled
in your browser. That's okay -- the Two-Site Data Grapher will work without
javascript. I invite you to enable javascript for this page, however, because
the Two-Site Data Grapher interface utilizes javascript to clarify and
simplify data input.

Data from the first site will be plotted against the Y axis on the left
side of the graph. Data from the second site will be plotted against the
Y axis on the right side of the graph, or against the X axis, depending on
the type of graph you choose.